colonitisMed.|kɒləˈnaɪtɪs| [Unetymologically f. colon1 + -itis; the proper etymological form is colitis.] Inflammation of the colon. 1834Good Study Med. (ed. 4) II. 240 Dr. Ballinghall has distinguished it by the name of Colonitis.1846G. E. Day tr.Simon's Anim.Chem. II. 391 In gastritis, colonitis.